Keywords Chapter 6 6th edition
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| 673429757 | selective attention | the focusing of conscious awareness on a particular stimulus, as in the cocktail party effect | 1 | |
| 673429758 | circadian rhythm | the biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle. | 2 | |
| 673429759 | REM sleep | rapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed (except for minor twitches) but other body systems are active. | 3 | |
| 673429760 | alpha waves | the relatively slow brain waves of a relaxed, awake state. | 4 | |
| 673429761 | sleep | periodic, natural, reversible loss of consciousness—as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation. (Adapted from Dement, 1999.) (Myers Psychology 8e p. 277) | 5 | |
| 673429762 | hallucinations | false sensory experiences, such as seeing something in the absence of an external visual stimulus | 6 | |
| 673429763 | delta waves | the large, slow brain waves associated with deep sleep | 7 | |
| 673429764 | consciousness | our awareness of ourselves and our environment | 8 | |
| 673429765 | insomnia | recurring problems in falling or staying asleep | 9 | |
| 673429766 | nacrolepsy | A sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at inopportune times | 10 | |
| 673429767 | sleep apnea | a sleep disorder characterized by temporary cessations of breathing during sleep and consequent momentary reawakenings | 11 | |
| 673429768 | night terrors | a sleep disorder characterized by high arousal and an appearance of being terrified; unlike nightmares, night terrors occur during Stage 4 sleep, within two or three hours of falling asleep, and are seldom remembered | 12 | |
| 673429769 | dream | a sequence of images, emotions, and thoughts passing through a sleeping person's mind. Dreams are notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamer's delusional acceptance of the content and later difficulties remembering it. | 13 | |
| 673429770 | REM rebound | the tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep) | 14 | |
| 673429771 | hypnosis | a social interaction in which one person (the hypnotist) suggests to another (the subject) that certain perceptions, feelings, thoughts, or behaviors will spontaneously occur. | 15 | |
| 673429772 | dissociation | a split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others | 16 | |
| 673429773 | psychoactive drug | a chemical substance that alters perceptions and mood | 17 | |
| 673429774 | tolerance | the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug's effect | 18 | |
| 673429775 | withdrawal | the discomfort and distress that follow discontinuing the use of an addictive drug | 19 | |
| 673429776 | physical dependence | A physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued. | 20 | |
| 673429777 | psychological dependence | a psychological need to use a drug, such as to relieve negative emotions | 21 | |
| 673429778 | opiates | opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety. | 22 | |
| 673429779 | stimulants | drugs (such as caffeine, nicotine, and the more powerful amphetamines, cocaine, and Ecstasy) that excite neural activity and speed up body functions. | 23 | |
| 673429780 | amphetamines | drugs that stimulate neural activity, causing speeded-up body functions and associated energy and mood changes | 24 | |
| 673429781 | Ecstasy (MDMA) | a synthetic stimulant and mild hallucinogen. Produces euphoria and social intimacy, but with short term health isks and longer-term harm to serotonin-producing neurons and to mood and cognition | 25 | |
| 673429782 | hallucinogens | psychedelic ("mind-manifesting") drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input | 26 | |
| 673429783 | LSD | A powerful hallucinogenic drug; also known as acid (lysergic acid diethylamide). | 27 | |
| 673429784 | near-death experience | an altered state of consciousness reported after a close brush with death (such as through cardiac arrest); often similar to drug-induced hallucinations | 28 | |
| 673429785 | THC | The major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations. | 29 | |
| 673429786 | depressants | drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions. | 30 | |
| 673429787 | barbiturates | drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment | 31 | |
| 673429788 | hypnotic jerk | jerk of the muscles in the body before we fall asleep | 32 |
